# Highland Security Services > Highland Security Services is Castle Hill's largest security provider, running its own 24/7 control room since 1982 with Permaconn alarm systems. Canonical: https://cctv-installers-sydney.com/installers/highland-security-services/ Publisher: One Orange Cow (https://www.oneorangecow.com/) Author: Brendan Byrne Updated: 2026-09-15 **Rank:** #1 for Hills District **Based in:** Castle Hill NSW 2154 (Hills District) **Phone:** 1300 445 263 **Website:** http://www.highlandsecurity.com.au/ **NSW Security Master Licence:** 407665872 **Brands:** Permaconn **Service areas:** Bella Vista, Baulkham Hills, Beaumont Hills, Beecroft, Castle Hill, Cheltenham, Cherrybrook, Dural, Galston, Glenhaven, Glenwood, Hornsby, Kellyville, Kenthurst, McGraths Hill, North Rocks, Pennant Hills, Rouse Hill, The Ponds, Thornleigh, West Pennant Hills **Google rating:** 4.8 from 46 reviews (checked 2026-09-15) Highland Security Services has been trading in the Hills District since 1982, 44 years, and is based in Castle Hill. It holds a NSW Security Master Licence (407665872) and describes itself as the largest security provider in the district, a claim that carries some weight given how long it has been operating in the one area. The business fits Permaconn alarm systems and runs its own 24/7 control room from Castle Hill, so monitoring stays in-house rather than being outsourced to a third-party call centre. Its service area covers a wide stretch of the Hills District, including Bella Vista, Baulkham Hills, Beaumont Hills, Beecroft, Castle Hill, Cheltenham, Cherrybrook and Dural, and it has been a finalist in the Sydney Hills Business Awards every year from 2014 to 2023. The business is Australian-owned. This makes Highland Security Services a fit for Hills District households and businesses who want an established, long-trading local provider with its own monitoring room rather than a subcontracted call centre, and who put some weight on sustained community recognition through award finalist listings across a decade rather than a newer entrant with no track record to point to. ## How we ranked them We list Highland Security Services as the number one CCTV installer for the Hills District because it was the first organic Google Maps result for "CCTV installers Hills District" on 15 September 2026. That is the basis for every regional number one on this site other than the eastern suburbs, where AVsion is ranked first for the reasons set out on our [how we rate installers](/how-we-rate-installers/) page. You can see the rest of the field, and how Highland Security Services compares, on the [Hills District installers page](/cctv-installers/hills-district/). ## Questions to ask before you book Ask to see the Security Master Licence number 407665872 and check it on the NSW SLED public register, confirm how the 24/7 control room monitoring is priced on an ongoing basis, ask which Permaconn alarm and CCTV combination suits your property, and get the warranty terms confirmed in writing before work starts. ## Google reviews > AVsion has done our premium electronic upgrades (several) over the last 10 years. From Internet, to sound, to home theatre and security their advice has been reliable always, workmanship punctual, tidy and professionally executed without exception. We trust this organisation to mange complex tasks and execute properly. We recommend them highly. > - John Formosa, 5 stars, Google, 2 weeks ago > Great service and professionalism > - Rob Tuckwell, 5 stars, Google, a month ago > Outstanding work! Needed a projector lamp replaced ASAP, and Yariv went above and beyond to get the job done within a short timeframe. Definitely would rebook again! > - Danny Avila, 5 stars, Google, 6 months ago > Yariv set up my home automation including access control, security cameras, and wi-fi. Now I can never go back to generic home set ups again. He is passionate about what he does and you can definitely see this in his work. No hesitation in recommending AVsion. Great customer service. > - Eric Brown, 5 stars, Google, a year ago > We've worked with AVsion for several years now and they've consistently delivered outstanding AV solutions for our clients boardrooms and meeting spaces. Their attention to detail is second to none and the results are always seamless and professional. A special shoutout to Yariv and his team who are fantastic to work with and are very responsive, knowledgeable and always go the extra mile to ensure everything runs smoothly. Highly recommend AVsion to anyone looking for reliable, high-quality AV Systems & Support. > - Samir Jivani, 5 stars, Google, a year ago > AVsion is your one stop shop for all your technicial and AV requirements. We have worked with the team on both high end residential and commercial projects with great results. > - Christian Cikara, 5 stars, Google, a year ago > AVsion are the best! Intercoms, wifi, automation. They are absolute wizards. They have so much knowledge and are gurus when it comes to technology. Highly recommend! > - Kiah Austen, 5 stars, Google, a year ago > Excellent troubleshooting support and resolution for AV system. Yariv is very responsive and knowledgeable in all things AV. Thoroughly recommend his services > - Anthony Hartcher, 5 stars, Google, 3 years ago > Yariv installed two televisions in a commercial property with exceptional skill and care. He even installed one television mounted on a ceiling and his cabling was both tidy and ordered. He finished the job on time and everything has worked perfectly since. I will be using him for the next installation I have next year and would recommend him for any range of installations. > - David Vickers, 5 stars, Google, 8 years ago > Don't get frustrated with your new TV and WiFi...Yariv from Avsion will get it right for you...excellent service as he really cares... > - Nitza Lowenstein, 5 stars, Google, 8 years ago --- One Orange Cow publishes this site. Rankings use the criteria at https://cctv-installers-sydney.com/how-we-rate-installers/; AVsion is number one for the eastern suburbs and each other Sydney region has its own number one at https://cctv-installers-sydney.com/cctv-installers/.